There’s something a little daunting about writing on the subject of the Black Twig Pickers: an awareness, I guess, that I’m dealing with a world of knowledge and experience that comically exceeds my own. There’s a quote on their website which reads innocuously enough: “Exciting old-time music at its finest.” But it comes from some evidently specialist publication called Bluegrass Unlimited: the Black Twigs might attract dabblers in old-time music, but they privilege, understandably, those who know what they’re talking about.